Sturdy Material: Made of good quantity 304 grade stainless steel, long lasting durability for a long time use. The quality and design ensures you will have no loose leaf tea debris floating in your drink. Extra fine mesh holes are designed to hold tea leaves, particles or grounds intact while allowing the flavor to drift out. Rust Resistant and Healthy Lifestyle: the infuser is made of high quality 304 grade stainless steel, ensures tea balls safe to use, durable and resistant to rust. A completely lead and chemical free tea steeper. Hook Design: the chain With the hook is easy to put the tea ball into the cup so that the tea leaf is fully soaked. Don't worry about the tea ball falling in, the hook is very easy to hang. Perfect Size: it's properly sized. They are large enough for a teapot-size worth of tea, but also small enough to fit into any cup you might want to use. Heavy enough to sink right to the bottom and don't float around.